Abstracts tagged "Macrophage"

Abstract Number: 132 • 2018 ACR/ARHP Annual Meeting
Novel Therapeutic Peptides Which Target CD206 Inhibit Macrophage Dependent Fibroblast Activation in Scleroderma
Bahja Ahmed Abdi¹, Henry Lopez², George Martin³, Charles Garvin³, Jesse Jaynes³, James Stanway⁴, Christopher P. Denton⁵, David Abraham⁶, Shivanee Vigneswaran⁷, Sian Morris⁷ and Richard J Stratton⁸, ¹Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, University College London, London, United Kingdom, ²Murigenics, Vallejo, CA, ³Riptide Bioscience, Vallejo, CA, ⁴Centre for Rheumatology and Connective Tissue diseases, University College London, London, United Kingdom, ⁵UCL Division of Medicine, Royal Free Campus, London, United Kingdom, ⁶Division of Medicine, Centre for Rheumatology and Connective Tissue Disease, University College London, London, United Kingdom, ⁷Centre for Rheumatology and Connective Tissue Diseases, University College London, London, United Kingdom, ⁸Centre for Rheumatology and Connective Tissue Disease, University College London, London, United Kingdom
Background/Purpose: Alternatively activated macrophages expressing CD206 are believed to promote fibrosis in a range of disorders including systemic sclerosis (SSc). Novel therapeutic peptides (RP) which…
Abstract Number: 2981 • 2018 ACR/ARHP Annual Meeting
Mitochondrial Extrusion and Autoimmunity in Juvenile Dermatomyositis
Christian Lood¹, Bhargavi Duvvuri², Richard Moore², Gabrielle A. Morgan³, Marisa Klein-Gitelman⁴, Megan L. Curran⁵ and Lauren M. Pachman⁶, ¹Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, ²Division of Rheumatology, University of Washington, Seattle, WA, ³Cure JM Program of Excellence in Myositis Research, Stanley Manne Children’s Research Institute, affiliated with Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, ⁴Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ⁵Section of Rheumatology, Children's Hospital of Colorado, Denver, CO, ⁶Cure JM Program of Excellence in Juvenile Myositis Research, Stanley Manne Children’s Research Institute, affiliated with Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL
Background/Purpose: We recently made the fundamental observation that mitochondrial extrusion is instrumental in mediating inflammation, autoimmunity and organ damage in lupus. Mitochondrial stress and mitochondrial…
Abstract Number: 849 • 2018 ACR/ARHP Annual Meeting
Constructing a Macrophage Infiltration Timeline in a Murine Model of Osteoarthritis
Cheng Zhou^1,2, Vu Nguyen^1,3, Nisha Sambamurthy^1,2, Michael Dodge^1,4 and Carla Scanzello^1,2, ¹Translational Musculoskeletal Research Center, CMC Veterans Affairs Medical Center, Philadelphia, PA, ²Division of Rheumatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ³University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ⁴Department of Orthopaedic Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
Background/Purpose: Macrophage infiltration in synovium (SM) and intraarticular fat pads (FP) is common in Osteoarthritis (OA), and can contribute to catabolic cytokine and protease production…
Abstract Number: 1007 • 2018 ACR/ARHP Annual Meeting
Macrophage Mediators of Autoimmune Valvular Carditis and Fibrosis
Lee Meier¹, Mayra Gonzalez-Torres², Jennifer L. Auger², Aubyn Marath³ and Bryce A. Binstadt², ¹Department of Pediatrics and Center for Immunology, University of Minnesota, Minneapols, MN, ²Department of Pediatrics and Center for Immunology, University of Minnesota, Minneapolis, MN, ³CardioStart International, Tampa, FL
Background/Purpose: K/B.g7 TCR transgenic mice spontaneously develop both autoimmune arthritis and valvular carditis. We utilize this model to define mediators of rheumatic disease-associated cardiovascular inflammation…
Abstract Number: 1008 • 2018 ACR/ARHP Annual Meeting
Presence of a Specific Defect in M2 Polarization of Blood Monocytes from Patients with Rheumatoid Arthritis, Associated with Increased microRNA-155
Audrey Paoletti¹, Julien Rohmer², Juliette Pascaud³, Bineta Oumouly¹, Elodie Rivière³, Samuel Bitoun⁴, Gaetane Nocturne⁵ and Xavier Mariette⁶, ¹U1184 IMVA, INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, le kremlin bicetre, France, ²National Referral Center for Rare Systemic Autoimmune Diseases, Hôpital Cochin, AP–HP, Université Paris Descartes, Paris, Internal medicine, France, Paris, France, ³Immunology of viral Infections and Autoimmune Diseases, IDMIT, CEA - Université Paris Sud - INSERM U1184, Le Kremlin Bicêtre & Fontenay aux Roses, France, ⁴INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, le kremlin bicetre, France, ⁵INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, Le Kremlin Bicêtre, France, ⁶Rheumatology department, Center for Immunology of Viral Infections and Autoimmune Diseases, Assistance Publique- Hôpitaux de Paris, Hôpitaux Universitaires Paris-Sud, Le Kremlin-Bicêtre, Université Paris Sud, INSERM, Paris, Paris, France
Background/Purpose: Macrophages contribute in situ to the RA pathogenesis. Two distinct states of polarization for macrophages have been recognized: the classically activated macrophage phenotype (M1),…
Abstract Number: 1009 • 2018 ACR/ARHP Annual Meeting
Monocytes Membrane TNF Expression and Anti-TNF Treatment in Rheumatoid Arthritis
Audrey Paoletti¹, Julien Rohmer², Juliette Pascaud³, Bineta Oumouly¹, Elodie Rivière³, Samuel Bitoun⁴, Gaetane Nocturne² and Xavier Mariette⁵, ¹U1184 IMVA, INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, le kremlin bicetre, France, ²INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, Le Kremlin Bicêtre, France, ³Immunology of viral Infections and Autoimmune Diseases, IDMIT, CEA - Université Paris Sud - INSERM U1184, Le Kremlin Bicêtre & Fontenay aux Roses, France, ⁴INSERM U1184, IMVA, Paris Sud University,LabEx LERMIT, le kremlin bicetre, France, ⁵Rheumatology department, Center for Immunology of Viral Infections and Autoimmune Diseases, Assistance Publique- Hôpitaux de Paris, Hôpitaux Universitaires Paris-Sud, Le Kremlin-Bicêtre, Université Paris Sud, INSERM, Paris, Paris, France
Background/Purpose: Three monocyte subsets have been described based on their CD14 and CD16 expression profiles. The subpopulation CD14+CD16+ being expanded in rheumatoid arthritis (RA) patient.…
Abstract Number: 1010 • 2018 ACR/ARHP Annual Meeting
Inhibition of Bruton’s Tyrosine Kinase (BTK) Prevents Inflammatory Macrophage Differentiation: A Potential Role in RA and SLE
Yasemin Beguem Alankus¹, Roland Grenningloh², Philipp Haselmayer¹, Andrew Bender³ and Julia Bruttger¹, ¹Merck KGaA, Darmstadt, Germany, ²EMD Serono Research and Development Institute, Billerica, MA, ³TIP Immunology, EMD Serono Research and Development Institute, Billerica, MA
Background/Purpose: Bruton’s Tyrosine Kinase (BTK) mediates B cell receptor (BCR) and Fc receptor (FcR) signalling in several hematopoietic cell lineages, including B cells, macrophages and…
Abstract Number: 1012 • 2018 ACR/ARHP Annual Meeting
Inhibition of Inflammation and Oxidative Stress in Systemic Sclerosis (SSc) Macrophages
Rajan Bhandari¹, Michael Ball², Saemi Han², Kathleen Aren³, Mary A. Carns³, Monique Hinchcliff⁴, Michael L. Whitfield⁵, Karen Liby⁶ and Patricia A. Pioli⁷, ¹Geisel School of Medicine at Dartmouth, lebanon, NH, ²Geisel School of Medicine at Dartmouth, Lebanon, NH, ³Northwestern University, Feinberg School of Medicine Scleroderma Program, Chicago, IL, ⁴Rheumatology, Northwestern University, Chicago, IL, ⁵Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, NH, ⁶Michigan State University, East Lansing, MI, ⁷Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, NH
Background/Purpose: Systemic sclerosis (SSc) is a chronic autoimmune disease of unknown etiology that is characterized by vasculopathy, fibrosis, and inflammation. Our work and that of…
Abstract Number: 1014 • 2018 ACR/ARHP Annual Meeting
Distinct Macrophage Phenotype and Bioenergetic Profiles in Rheumatoid Arthritis
Megan M. Hanlon¹, Mary Canavan¹, Trudy McGarry¹, Candice Low², Siobhan C. Wade¹, Douglas J. Veale² and Ursula Fearon¹, ¹Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ²Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland
Background/Purpose: Synovial macrophages play a key role in RA disease progression, yet the diversity of macrophage subsets within the joint remains unknown. The concept of…
Abstract Number: 1015 • 2018 ACR/ARHP Annual Meeting
Rheumatoid Arthritis Peripheral CD14+ Monocytes Are Hyper-Inflammatory, Hyper-Glycolytic and Retain a Memory Bias Toward M1 Macrophages
Trudy McGarry¹, Megan M. Hanlon², Clare C. Cunningham³, Douglas J. Veale⁴ and Ursula Fearon⁵, ¹St. Vincent's University Hospital, Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin 4, Ireland, ²Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ³Molecular Rheumatology, Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland, ⁴Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, University College Dublin, Dublin, Ireland, ⁵Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
Background/Purpose: Myeloid cells with a monocyte/macrophages phenotype are present in large numbers in the rheumatoid arthritis (RA) joint, significantly contributing to disease. This study aimed…
Abstract Number: 1021 • 2018 ACR/ARHP Annual Meeting
Impact of TLR7 Ligation in RA Pathology
Sadiq Umar^1,2, Katrien Van Raemdonck^1,2, Karol Palasiewicz^1,2 and Shiva Shahrara¹, ¹Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, ²Jesse Brown VA Medical Center, Chicago, IL
Background/Purpose: Expression of Toll-like receptor 7 (TLR-7) is highly elevated in rheumatoid arthritis (RA) and osteoarthritis (OA) compared to normal (NL) synovial tissue lining and…
Abstract Number: 1046 • 2018 ACR/ARHP Annual Meeting
Distinct Balance of TNF-α/IL-10 in Circulating and Infiltrating CD163+ Macrophages between Rapidly and Slowly Progressive Symptomatic Knee Osteoarthritis
Li Wang, Wenmin Wang, Hui Chu, Xifu Shang and Xiaomei Li, Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
Background/Purpose: There is a subtype of osteoarthritis (OA), which shows higher level of inflammation and higher risk of disease progression. In the current study, we…
Abstract Number: 12L • 2017 ACR/ARHP Annual Meeting
Evaluation of Intravenous Injection of Tc 99m Tilmanocept in Static Planar Gamma Emission Imaging and Fused SPECT/CT Imaging for Rheumatoid Arthritis
Arash Kardan¹, Bonnie Abbruzzese², James Sanders², Allison Kissling², David Ralph², Joanna Shuping², Michael Blue², Carley Hartings², Rachael Hershey², Ahmad Ismail², Izabela Gierach², Hannah Bailey², Amelia Spaulding², Matthew Haynam², George Zubal³ and Frederick Cope², ¹Charles F. Kettering Memorial Hospital and Wright State University Boonshoft School of Medicine, Dayton, ND, ²Navidea Biopharmaceuticals, Inc., Dublin, OH, ³Z-Concepts, LLC, East Haven, CT

Background/Purpose: Activated macrophages play a critical role in RA by perpetuating inflammation via TNFα release and participating in the destruction of bone and cartilage. Notably,…
Abstract Number: 2926 • 2017 ACR/ARHP Annual Meeting
Fucosyltransferase-1 Mediates Macrophage Driven Myofibroblast Differentiation and TGF-β Signaling in Systemic Sclerosis and Bleomycin-Induced Fibrosis
W. Alexander Stinson¹, Ellen Cealey¹, Pei-Suen Tsou¹, Ray A. Ohara¹, Yuxuan Du², Jonatan Hervoso¹, Nicholas Lepore¹, Sarah Arwani¹, Dinesh Khanna¹, David A. Fox¹ and M. Asif Amin¹, ¹Division of Rheumatology and Clinical Autoimmune Center of Excellence, University of Michigan, Ann Arbor, MI, Ann Arbor, MI, ²Division of Rheumatology and Clinical Autoimmune Center of Excellence, University of Michigan, Ann Arbor, MI, Ann Arbor, MI, MI
Background/Purpose: Systemic sclerosis (SSc) is a connective tissue disease characterized by dysregulated fibrosis of the skin. During fibrosis, macrophage release of transforming growth factor (TGF-β)…
Abstract Number: 2934 • 2017 ACR/ARHP Annual Meeting
Comparative Analysis of the Macrophage Glycolytic Machinery in Giant Cell Arteritis (GCA) and in Coronary Artery Disease (CAD)
Cornelia M. Weyand¹, Ryu Watanabe², Tsuyoshi Shirai³, Hui Zhang⁴, Gerald Berry⁵ and Jorg Goronzy⁶, ¹Medicine: Immunology and Rheumatology, Stanford University, Stanford, CA, ²Medicine: Immunology/Rheumatology, Stanford University School of Medicine, Stanford, CA, ³Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan, ⁴Medicine: Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, ⁵Pathology, Stanford University School of Medicine, Stanford, CA, ⁶Medicine/Division of Immunology & Rheumatology, Stanford University School of Medicine, Stanford, CA
Background/Purpose: Macrophages are key effector cells in the vessel wall inflammation of the atherosclerotic plaque as well as in the intramural infiltrates of giant cell…

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